Base | Representation |
---|---|
bin | 1111101110000… |
… | …11001000010111 |
3 | 100012010202100120 |
4 | 13313003020113 |
5 | 232224340010 |
6 | 21030243023 |
7 | 3160613205 |
oct | 767031027 |
9 | 305122316 |
10 | 131871255 |
11 | 6848a90a |
12 | 381b6473 |
13 | 21422439 |
14 | 1372a075 |
15 | b89ce70 |
hex | 7dc3217 |
131871255 has 16 divisors (see below), whose sum is σ = 211227360. Its totient is φ = 70253568.
The previous prime is 131871251. The next prime is 131871263. The reversal of 131871255 is 552178131.
It is not a de Polignac number, because 131871255 - 22 = 131871251 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131871251) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10779 + ... + 19491.
It is an arithmetic number, because the mean of its divisors is an integer number (13201710).
Almost surely, 2131871255 is an apocalyptic number.
131871255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
131871255 is a deficient number, since it is larger than the sum of its proper divisors (79356105).
131871255 is a wasteful number, since it uses less digits than its factorization.
131871255 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9730.
The product of its digits is 8400, while the sum is 33.
The square root of 131871255 is about 11483.5210192693. The cubic root of 131871255 is about 508.9987468496.
The spelling of 131871255 in words is "one hundred thirty-one million, eight hundred seventy-one thousand, two hundred fifty-five".
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